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States of Matter. Fluids. Activty. Will it float? Rock Potato Paper clip Pen Pencil Coin Candle Eraser. Objectives. Describe the buoyant force and explain how it keeps objects afloat. Define Archimedes’ principle. Explain the role of density in an object’s ability to float.
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States of Matter Fluids
Activty • Will it float? • Rock • Potato • Paper clip • Pen • Pencil • Coin • Candle • Eraser
Objectives • Describe the buoyant force and explain how it keeps objects afloat. • Define Archimedes’ principle. • Explain the role of density in an object’s ability to float. • State and apply Pascal’s principle. • State and apply Bernoulli’s principle.
Describe the buoyant force and explain how it keeps objects afloat.Define Archimedes’ principle.
Pressure Pressure = force / area = F / A Units = Newton per square meter = pascal
Buoyancy USS Dwight D. Eisenhower Aircraft Carrier • Dimensions • Length of flight deck: 1,092 ft. • Width of flight deck: 252 ft. • Height keel to mast: 244 ft. (equal to 24-story building) • Area of flight deck: 4.5 acres • Weight of carrier: 95,000 tons
Explain the role of density in an object’s ability to float.
Mythbusters http://videos.howstuffworks.com/discovery/6540-mythbusters-lets-talk-buoyancy-video.htm
Pascal’s Principle • F1 / A1 = F2 / A2